Periodic micro hole texturing with metal assisted chemical etching for solar cell applications: dependence of etch rate on orientation

Date

2017-01-01

Author

Altınoluk, Hayriye Serra
Çiftpınar, Emine Hande
Demircioğlu, Olgu
Turan, Raşit

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Surface texturing is an indispensable process for solar cell fabrication. The interaction of the surface with the incoming sunlight is controlled by texturing in such a way that the absorption is maximized through multiple interactions. Wet and dry etching techniques have been used to create textured surfaces on solar cells. Other than standard alkaline texturing used by the industry, metal assisted etching (MAE) appears to be a promising texturing technique with greater potential application for multi-crystalline solar cell fabrication. It is possible to achieve both random and periodic patterns with MAE which is relatively cheaper than dry plasma etching techniques. In this study, periodic hole patterns with micron sized diameters and periodicity were aimed to be achieved. Etching rate was shown to be strongly dependent on the surface orientation. Uniformly distributed patterns with various diameter and period values were successfully obtained. Fabrication of solar cells on these surface patters were demonstrated. Performance of solar cells was evaluated through parameters like efficiency, open circuit voltage and short circuit current

Subject Keywords

Surface texturing, Light trapping, Metal assisted etching, Periodic patterning, Micro and nano hole texturing of crystalline silicon surface

URI

https://hdl.handle.net/11511/75831

Journal

Journal of Materials Science and Nanotechnology

DOI

https://doi.org/10.15744/2348-9812.5.102

Collections

Department of Physics, Article

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Citation Formats

H. S. Altınoluk, E. H. Çiftpınar, O. Demircioğlu, and R. Turan, “Periodic micro hole texturing with metal assisted chemical etching for solar cell applications: dependence of etch rate on orientation,” Journal of Materials Science and Nanotechnology, pp. 1–8, 2017, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/75831.